A stereo speaker plays music at a sound intensity of 30 dB. If a second identical...
A stereo speaker plays music at a sound intensity of 30 dB. If a second identical speaker plays the same music at the same time and intensity level, the total sound intensity level will be:
A) 30 dB
B) 40 dB
C) 60 dB
d) none of these
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A stereo speaker plays music at a sound intensity of 30 dB. If a
second identical...
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity...
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity is 0.120 W/m2. Another person is 32.0 m from the speaker. Assume the sound is emitted equally in all directions. I0 = 1.00 x 10-12 W/m2 a) What is the intensity in W/m2 at 32.0 m from the speaker? b) What is the sound level in dB at 32.0 m from the speaker? A. The intensity is 7.50 x 10-3 W/m2 B. The intensity...
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity...
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity is 0.120 W/m2. Another person is 32.0m from the speaker. Assume the sound is emitted equally in all directions. lo = 1.00 x 10-12 W/m2 a) What is the intensity in W/m2 at 32.0 m from the speaker? b) What is the sound level in dB at 32.0 m from the speaker? The intensity is 7.50 x 10-3 W/m2 The intensity is 3.00 x...
A stereo speaker (considered a small source) emits sound waves with a power output of 22.4...
A stereo speaker (considered a small source) emits sound waves with a power output of 22.4 W. (Assume that the sound is emitted uniformly in all directions from the speaker.) a) Find the intensity 10.5 m from the source. b) Find the intensity level, in decibels, at this distance. c) At what distance would you experience the sound at the threshold of pain, 120 dB?
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity...
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity is 0.120 W/m? Another person is 32,0 m from the speaker. Assume the sound is emitted equally in all directions to -1.00 x 10-12 W/m2 a) What is the intensity in Wim? at 32.0 m from the speaker? b) What is the sound level in dB at 32.0 m from the speaker? ОА The intensity is 7.50 x 10 wim? DB The intensity is...
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity...
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity is 0.120 W/m2. Another person is 32.0 m from the speaker. Assume the sound is emitted equally in all directions. lo=1.00 x 10-12 W/m2 a) What is the intensity in W/m2 at 32,0 m from the speaker? b) What is the sound level in dB at 32.0 m from the speaker? A. The intensity is 7.50 x 10-3 W/m2 OB. The intensity is 3.00...
A.Determine the sound level heard by the guitarist when one speaker is operating .Units dB B.Determine...
A.Determine the sound level heard by the guitarist when one
speaker is operating .Units dB
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speakers are operating .Units dB
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B.The frequency determined by the radar speed gun for the
signal reflected back to it by the motor vehicle .Units :Hz
Two identical speakers are positioned the same distagce from a guitarist. The intensity of sound...
Miranda is measuring the sound intensity level for a speaker by holding a sound level meter....
Miranda is measuring the sound intensity level for a speaker by holding a sound level meter. The intensity of the sound wave at her location is 2.6e-07 W/m2. (a) What is the sound intensity level (SIL) recorded on the meter at Miranda's location? i got the answer of 54.14dB (b) The volume of the speaker is turned down until the intensity of the sound being produced decreases by a factor of 150. What does Miranda's sound level meter read now?...
A plane wave at 2,000 Hz has a sound intensity level of 75 dB. What is...
A plane wave at 2,000 Hz has a sound intensity level of 75 dB. What is Prms in Pa? d. 3.6x10 5.1x10-1 f. None of the above a. 3.6x10-2 b. 1.1x10-1 c. 2.3x10-1 e. 0. A plane wave at 1,050 Hz in air at room temperature has a sound intensity level of 60 dB. What is the wavelength in ft? a. 0.27 b. 0.33 d. 0.90 1.07 e. c. 0.78 f. None of the above
A plane wave at 2,000...
1. If a sound of frequency 1000 Hz has intensity level 30 dB, what would be...
1. If a sound of frequency 1000 Hz has intensity level 30 dB,
what would be the intensity level of sound frequency 50 Hz which
appears to have equal loudness? (Answer= 60 dB)
2. Intensity of 30 dB, 1000 Hz sound= (Answer= 1.000 x 10-9
W/m^2)
*3. What is intensity (in W/m^2) of the equal loudness 50 Hz
sound? (Answer is NOT 50.12 x 10^-12)
*4. What is the ratio of the pressure variation (in amplitude)
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A person standing 1.05 m from a portable speaker hears its sound at an intensity of...
A person standing 1.05 m from a portable speaker hears its sound at an intensity of 6.30 x 10-3 W/m2 a) Find the corresponding decibel level. (Answer in dB). b) Find the sound intensity (in W/m2 ) at a distance of 42.0 m, assuming the sound propagates as a spherical wave. ( answer in W/m2 ). c) Find the decibel level at a distance of 42.0 m. (answer in dB).
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity is 0.120 W/m2. Another person is 32.0m from the speaker. Assume the sound is emitted equally in all directions. lo = 1.00 x 10-12 W/m2 a) What is the intensity in W/m2 at 32.0 m from the speaker? b) What is the sound level in dB at 32.0 m from the speaker? The intensity is 7.50 x 10-3 W/m2 The intensity is 3.00 x...
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity is 0.120 W/m? Another person is 32,0 m from the speaker. Assume the sound is emitted equally in all directions to -1.00 x 10-12 W/m2 a) What is the intensity in Wim? at 32.0 m from the speaker? b) What is the sound level in dB at 32.0 m from the speaker? ОА The intensity is 7.50 x 10 wim? DB The intensity is...
At a concert, a person is standing 2.00 m from a speaker, where the sound intensity is 0.120 W/m2. Another person is 32.0 m from the speaker. Assume the sound is emitted equally in all directions. lo=1.00 x 10-12 W/m2 a) What is the intensity in W/m2 at 32,0 m from the speaker? b) What is the sound level in dB at 32.0 m from the speaker? A. The intensity is 7.50 x 10-3 W/m2 OB. The intensity is 3.00...
A.Determine the sound level heard by the guitarist when one
speaker is operating .Units dB
B.Determine the sound level heard by the guitanist when both
speakers are operating .Units dB
A. The frequency of the signal as determined by the motor
vehicle .Units MHz
B.The frequency determined by the radar speed gun for the
signal reflected back to it by the motor vehicle .Units :Hz
Two identical speakers are positioned the same distagce from a guitarist. The intensity of sound...
A plane wave at 2,000 Hz has a sound intensity level of 75 dB. What is Prms in Pa? d. 3.6x10 5.1x10-1 f. None of the above a. 3.6x10-2 b. 1.1x10-1 c. 2.3x10-1 e. 0. A plane wave at 1,050 Hz in air at room temperature has a sound intensity level of 60 dB. What is the wavelength in ft? a. 0.27 b. 0.33 d. 0.90 1.07 e. c. 0.78 f. None of the above
A plane wave at 2,000...
1. If a sound of frequency 1000 Hz has intensity level 30 dB,
what would be the intensity level of sound frequency 50 Hz which
appears to have equal loudness? (Answer= 60 dB)
2. Intensity of 30 dB, 1000 Hz sound= (Answer= 1.000 x 10-9
W/m^2)
*3. What is intensity (in W/m^2) of the equal loudness 50 Hz
sound? (Answer is NOT 50.12 x 10^-12)
*4. What is the ratio of the pressure variation (in amplitude)
of the equal loudness...
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